Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Coeur Mining, Inc.	Mar. 31, 2013 Coeur Mining, Inc.	Mar. 31, 2014 Guarantor Subsidiaries	Mar. 31, 2013 Guarantor Subsidiaries	Mar. 31, 2014 Non-Guarantor Subsidiaries	Mar. 31, 2013 Non-Guarantor Subsidiaries	Mar. 31, 2014 Eliminations	Mar. 31, 2013 Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	$ (9,627)	$ 12,934	$ (37,623)	$ 22,976	$ 4,932	$ 16,889	$ 10,082	$ 3,823	$ 12,982	$ (30,754)
Capital expenditures	(11,936)	(12,827)	(945)	(428)	(5,670)	(6,626)	(5,321)	(5,773)	0	0
Payments to Acquire Investments	(46,220)	(4,649)	(45,796)	(1,598)	(424)	(16)	0	(3,035)	0	0
Payments for (Proceeds from) Investments	90	4,822	90	1,375	0	14	0	3,433	0	0
Proceeds from Discontinued Operations Sale of Assets and Other	(25)	(10,610)	0	(11,553)	0	238	(25)	705	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates	0	0	13,160	(30,754)	(178)	0	0	0	(12,982)	30,754
Net Cash Provided by (Used in) Investing Activities	(58,091)	(23,264)	(33,491)	(42,958)	(6,272)	(6,390)	(5,346)	(4,670)	(12,982)	30,754
Issuance of notes and bank borrowings	153,000	300,000	153,000	300,000	0	0	0	0	0	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(4,111)	(55,340)	(3,196)	(52,565)	(412)	(1,240)	(503)	(1,535)	0	0
Payments to Acquire Royalty Interests in Mining Properties	(14,683)	(15,448)	0	0	0	0	(14,683)	(15,448)	0	0
Payments for Repurchase of Common Stock	0	(12,557)		(12,557)		0		0		0
Proceeds From Repayment Intercompany Borrowings	0	0	(11,475)	7,355	1,515	(9,377)	9,960	2,022	0	0
Proceeds from (Payments for) Other Financing Activities	(246)	(454)	(246)	(454)	0	0	0	0	0	0
Net Cash Provided by (Used in) Financing Activities	133,960	216,201	138,083	241,779	1,103	(10,617)	(5,226)	(14,961)	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	66,242	205,871	66,969	221,797	(237)	(118)	(490)	(15,808)	0	0
Cash and Cash Equivalents, at Carrying Value	$ 272,932	$ 331,311	$ 204,045	$ 137,076	$ 754	$ 991	$ 68,133	$ 68,623	$ 0	$ 0